The Yocto Project - An Overview - hands-on Training Course

Course Outline

Introduction

• History of Unix/Linux, licenses, standards, working with free software, finding assistance, exploration techniques, and the Unix philosophy

Embedded Specifics

• Comparison between Linux on desktops and in embedded systems, cross-native toolchains, pre-built toolchains, build systems, C libraries, and more

Evaluation Board

• Understanding the boot process and observing the boot sequence

Yocto Introduction

• What is Yocto? Why use the YP? What is the YP?, Poky, BitBake, OE-Core, Metadata

The YP Autobuilder

• Understanding the YP Autobuilder, Docker container operations (pulling and launching the container)

The YP Workflow

• Introduction
• Workflow overview, OE architecture
• Configuration (User, Metadata, Machine, Distribution Policy)
• Sources
• Build process (Source fetching, Patching, Configure/Compile/Install, Pseudo, Recipe examples, Output analysis/Packaging, Image Generation, SDK Generation)
• Customizing Images (Introduction, local.conf, IMAGE_FEATURES, custom .bb files, custom packagegroups)

BitBake

• History
• Syntax
• Debugging (debug levels, finding recipes/images/packagegroups, BitBake environment/tasks/logging, forcing builds/specific tasks, cleansstate, invalidating stamps, devshell, dependency explorer, terminating all BitBake instances, BitBake graphical wrapper)

Layers

• Introduction, bitbake-layers tool, yocto-layer tool

BSP

• Introduction, System Development Workflow, BSP Developer’s Guide (bsp-tool)

Kernel

• Introduction, System Development Workflow, Kernel Development Manual (defconfig, defconfig plus configuration fragments, in-tree kernel modules, out-of-tree kernel modules, fdt, etc.)

Application Development Toolkit

• Introduction, Cross-Development Toolchain, Sysroot, ADT - Eclipse Yocto Plug-in, The QEMU Emulator, User Space Tools
• Installing ADT & Toolchains
  • Using a Cross-Toolchain tarball (Introduction, Building/Installing the Cross-Toolchain tarball, Cross-Toolchain + Makefile/Autotools/Autotools library + App, recipes)
  • Using the ADT Installer (Introduction, Web Server, Building the image + ADT installer, Configuring and running the ADT installer, adding the ADT installer to the web server, ADT installer on the host)

Eclipse

• Introduction, Application Development Workflow
• Working with Eclipse (rootfs features, kernel + fdt, rootfs, installing JDK, installing Eclipse, configuring Eclipse, installing the Yocto Plug-in, configuring the Yocto Plug-in, creating an Autotooled Project, configuring the Cross-Toolchains, building the project)

Debugging

• Introduction, gdb, gdb remote debugging, debugging with Eclipse (remote), running from Eclipse (remote)

Profiling/Tracing

• Introduction, perf, gprof, gcov, strace, ftrace, systemtap, oprofile, LTTng + Eclipse (data visualization)

Package Management

• Working with packages, IPK, creating a package feed, installing a package with opkg on the target device

Licensing

• Introduction, adding custom licenses, Open Source License Compliance

Devtool

• Introduction, devtool, real-world showcase meta-cfengine

Except where otherwise noted, the content and this course outline are licensed under Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0).